Check-valve.



No. 84(53332. PATENTED MAR. 5, 1907. R. H. RIDDLE.

CHECK VALVE.

APPLICATION FILED JAR; B, 1906.

I & u-nl ill! A TTORNE Y5.

mnrnn STATES PATENT OFFICE.

Specification of Letters Patent.

Patented March 5, 1907.

Application filed January 3, 1908. Serial. Ile- 294,440.

1'0 (LZZ whom it may concern:

' Be it known that I, RICHARD Kmnm, a citizen of the United States, residing at Kins- 'man, in the county of Trumbull and State of Ohio, have invented a new and useful Check- Valve, of which the following is a specification. This invention relates to check-valves, and has for its object to provide a simple, inexpensive, and efficient device of this character in which the vaivc is mounted for swinging. movement within the casing and movable to closed position by gravity. i A further object ofthc invention is to pro- '1 vidc' means for insuring the positive seating.

of the valve and means for prevontingaccidental displacement ofsaid valve.

A still further object is to provide a valve and valve-scat capab'le'of being quickly removed when worn or injured from constant use, so that the same may be conveniently reground or replaced by new parts when necessary. With these-and other objects in view the invention consists in the construction and x 2 5 novel combination and arran ement of parts hereinafter fully described, illustrated in the l accompanying drawings, and pointed out in the claim hereto appended, it heihgunder stood that various changes in form, proportions, and minor details of construction may be resorted-to within the scope of'the appended claim.

In the accompanying drawings, forming a 1 part of this specification,- Figure 1 is a longitudinal sectional view of a check-valve.con-

'structed in accordance with'my invention. Figafiis a top plan view ofthe same with the threaded cap or closure removed. Fig. 3 is a transverse sectional view on the line 3 3 of 4o'Fi '1. Fi' 41i'sa. perspective view of the vave detac liedjz F'g. 5- 1s a similar view of the valve-seat detached.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The improved device consists of a valvecasing 5, provided with oppositely-disposed threaded openings 6 for connection with a fiuid-supplv pipe and having a threaded 5 opening 7 formed in the top thereof and communicating with the interior of the casing, the latter opening heingnormally closed by a threaded cap or cover 8. as shown. I Extending transversely the vslvewnsing is a partition-9, the upper end of which p'ar-f g5 tially closest-he opening 7 and'is extended laterally to form-a shoulder or horizontal support 10 forthe swinging valve 11.. The support 10 is formed witlralined'reoesses or, pockets 12, adapted to receive the trunnions"'6o' l3 of the va'lve 11, said recesses or pockets being slightly wider-than thc trunnions 13to 2.

permit the valve to. readily aceomn odetoi itself to the valve-seat 1 4. The valvcfjs eat 14' v is threaded in an opening 15 in the artition 6 9 and-is provided with an snnu txQstopflange 16 and a pair ofinwardly extending ears or lugs 17 to crmit the same' to'be, readily engaged and rotated-by a." su itablo tool when it is desired to remove'jand re fq' grind saidvalve-seat. f

The walls of the valve-casing jat thqopen-i' ing 7 are provided with oppositelyfiisposed" guiding-recesses 18 to permit the ready lnser tion and removal of the valve llijth'e'lattcr being retained in position b y the gg'argglof' sure 8, which is hollowed out, ass own to,

ermitfreeswi ing movement ofsaidv'al ve. [he pivoted eiid oi. the valve is preferably: provided with a lug or finger-pieceQIQby. eans of which the valvehmaybefmoved manuell to open 1position when the cap '15; remove and whic serves as a. convenientmeans for grasping and elevating the'valve when it is desired to remove and regrlindtho same. Attention is called to.the 'fact that the trunnions 13 have a limited lateral plav within the pockets or recesses, 12 so the the valvew ill accommodate itself to. its seat,'and 1 thus insure a' sitive closing movementof said valve a also render thcvalves interchangeable. It will of 'Iourse be understo'odthatthe". valve may be placed in either an upriahtot 9'5 horizonta position and that the valv and valve scat may be provided with gaskets 'm cases where they are found desirable.

Having thus described the invention, what isclaimedis- In a valve, a valve-casing provided with a transverse partition having a threaded opening formedtherein and having one end..th6r& of extended-laterally to form-a support and rovided with alinod bearings, there being a :05 epression formed in they extension between the bearings, a detachable valve-seat thread ed seriai opening and provided with in- ICU wardly-extending lugs, a valve pivoted in my own I have hereto affixed my signature said bearings and having a limited lateral 1n the presence of tvvo Witnesses. movement, and a. finger-piece formed on the I pivoted end of the valve and movable into RICHARD KIDDLE' 5 engagement with the walls of the depression Witnesses'zwhen the valve is moved to open position. PAUL K. FOBES,

In testimony that I claim the roregoing as 1 FRANK A. GRIFFITH. 

